Dianthus plant named ‘WP05 Yves’

ABSTRACT

A new cultivar of  Dianthus  plant named ‘WP05 Yves’ that is characterized by compact mounding habit, gray-green foliage and fragrant white flowers with bright purple center. In combination these traits set ‘WP05 Yves’ apart from all other existing varieties of  Dianthus  known to the inventor.

Genus: Dianthus. Species: ×hybrida.

Denomination: ‘WP05 Yves’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Dianthus, or garden pink, that is grown for use as an ornamental landscape and container plant. It is known botanically as Dianthus×hybrida and will be referred to hereinafter by the cultivar name ‘WP05 Yves’. It is one of two applications by the inventor of two co-pending new cultivars of Dianthus. The other is titled Dianthus Plant Named ‘WP05 Enid’ (U.S. Plant patent application Ser. No. 11/523,297).

‘WP05 Yves’ is the product of a breeding program started by the inventor in 1985 in a cultivated area of Houndspool, Dawlish, Devon, United Kingdom. The primary focus of the breeding program is to produce new cultivars of garden pinks that exhibit unique characteristics of flower color and form, and which, preferably, are highly and pleasantly fragrant. In addition, new varieties are selected for being well-proportioned in respect of ratio of overall height (including flower canopy) to overall width.

Ordinarily, the inventor carries out controlled crosses, with known parents, and selects new varieties for sets of similar characteristics in order to make whole sets of series. ‘WP05 Yves’ is a chance hybrid plant that was selected in 2003 as a single seedling from a large group (which the inventor designated as Family 9722) of open-pollinated seedlings which itself had resulted from open-pollination of a group of unnamed and unreleased plants of Dianthus from the inventor's large collection of Dianthus. Thus, on this occasion, the inventor is unable to identify either the male or the female parent, or to draw comparisons between ‘WP05 Yves’ and either parent.

‘WP05 Yves’ was selected for its distinguishing combination of compact well-proportioned habit, floriferous blooming, perfume fragrance and double bi-colored flowers. The closest cultivar known to the inventor is Dianthus Plant Named ‘Devon Yolande’ (U.S. Plant Pat. No. 16,029). ‘WP05 Yves’ is distinguished from ‘Devon Yolande’ by having a bright purple center area with a white surround whereas ‘Devon Yolande’ has a bright purple center with white surround.

Asexual reproduction of the new cultivar was first accomplished by the inventor in 2003, in a cultivated area of Houndspool, United Kingdom. The method of asexual propagation used was stem cuttings. Since that time the characteristics of the new cultivar have been determined stable and are reproduced true to type in successive generations by vegetative propagation.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and represent the characteristics of the new Dianthus cultivar ‘WP05 Yves’. These traits in combination distinguish this cultivar from all other commercial varieties known to the inventor. ‘WP05 Yves’ has not been tested under all possible conditions and phenotypic differences may be observed with variations in environmental, climatic and cultural conditions without however any difference in genotype.

-   -   1. Dianthus ‘WP05 Yves’ exhibits a compact mounding growth         habit.     -   2. Dianthus ‘WP05 Yves’ exhibits gray-green foliage.     -   3. Dianthus ‘WP05 Yves’ exhibits fragrant flowers with a bright         purple center with a white surround.     -   4. Dianthus ‘WP05 Yves’ is 20-25 cm in overall height, including         flower canopy, and 25-30 cm in width in a 1.5-liter container.     -   5. Dianthus ‘WP05 Yves’ is an evergreen perennial ornamental.     -   6. Dianthus ‘WP05 Yves’ blooms from May to October.     -   7. Dianthus ‘WP05 Yves’ is hardy to minus 15° Centigrade.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying color drawings illustrate the overall appearance of the new Dianthus variety ‘WP05 Yves’ showing colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the drawings may differ from the color values cited in the detailed botanical description, which accurately describe the actual colors of the new variety ‘WP05 Yves’.

The drawing labeled as FIG. 1 illustrates the entire plant in flower.

The drawing labeled as FIG. 2 is a close-up of typical flowers.

All drawings were made of plants grown in 1.5-liter containers under an unheated glasshouse in Houndspool, Devon, United Kingdom. No chemicals were used to treat the plants. All drawings were made using conventional techniques and although colors may appear different from actual colors due to light reflectance they are as accurate as possible by conventional photography.

BOTANICAL DESCRIPTION OF THE PLANT

The following is a detailed description of the new cultivar ‘WP05 Yves’. Data was collected from plants grown in 1.5-liter containers under an unheated glasshouse in Houndspool, United Kingdom. The color determinations are in accordance with the 2001 edition of The Royal Horticultural Society Colour Chart of The Royal Horticultural Society, London, England, except where general color terms of ordinary dictionary significance are used. No chemicals were used to treat the plants. Growing conditions are typical to other Dianthus.

-   Botanical classification: Dianthus ‘WP05 Yves’. -   Species: ×hybrida. -   Common name: Hybrid dianthus. -   Commercial classification: Hardy perennial herb. -   Use: Ornamental plant for small pots and containers. -   Parentage: ‘WP05 Yves’ is a hybrid plant that resulted from the open     pollination of a group of unidentified Dianthus seedlings.     -   -   Female parent plant.—Unidentified individual Dianthus plant.         -   Male parent plant.—Unidentified individual Dianthus plant. -   Plant description:     -   -   Bloom period.—May to October.         -   Plant habit.—Compact mounding habit.         -   Plant height.—20-25 cm in overall height, including flower             canopy.         -   Plant width.—25-30 cm in width.         -   Plant hardiness.—Hardy to minus 15° Centigrade.         -   Type.—Perennial.         -   Root system.—Fibrous.         -   Propagation.—Propagation is accomplished using stem             cuttings.         -   Cultural requirements.—Plant in full sun, well-drained and             moderately fertile soil and keep well fertilized and             watered.         -   Diseases and pests.—Susceptible to known Dianthus pests and             disease but no other susceptibilities to pests or disease             are known to the inventor.         -   Time required to produce a rooted cutting.—5 weeks are             needed to produce a rooted cutting.         -   Temperature recommended for cuttings to produce roots.—The             air temperature needed is a minimum of 15° Centigrade air             temperature and base heat of 21° Centigrade.         -   Crop time.—3-6 months is needed to produce a finished             1.5-liter container size from a well-rooted cutting. -   Foliage:     -   -   Stem.—Shape: Cylindrical. Dimensions: 13 cm-20 cm in length             and 3 mm in diameter. Surface: Glabrous and glaucous. Color:             145C. Branching: Numerous shoots from the axils of the lower             leaves. Internode length: 10 mm-20 mm between nodes. Node             dimensions: 4 mm in diameter and 3 mm in length.         -   Leaf.—Type: Evergreen. Dimensions: 5 cm-7.5 cm in length and             3 mm in width. Color (adaxial and abaxial surfaces): 133B.             Shape: Linear. Division: Simple. Apex: Acute. Base:             Decurrent. Venation: Not prominent. Margins: Entire.             Attachment: Sheathing. Arrangement: Opposite and spiraling             up stem. Surfaces (adaxial and abaxial): Glaucous. Stipules:             Present. Stipule dimensions: 2 mm. in width and 8 mm. in             length. Stipule color: 122A. Fragrance: Absent. -   Flowers:     -   -   Inflorescence.—Cymose.         -   Type.—Salviform and symmetrical.         -   Number.—3-7 per stem.         -   Dimensions (including calyx).—30 mm in length and 35 mm in             diameter.         -   Shape.—Circular.         -   Profile.—Reflexed.         -   Lastingness.—10 days at 20° Celsius on the plant.         -   Fragrance.—Moderate, clove-like.         -   Flowering period.—May-October in Devon, UK.         -   Peduncle.—Dimensions: 20 cm-25 cm in length, 3 mm in width.             Strength: Erect. Color: 133B.         -   Bud.—Color: Each bud is 137A on apical half and 137B on             basal half. Anthocyanin: Absent. Dimensions: 18-20 mm. in             length and 8-9 mm. in width. Shape: Cylindrical.         -   Corolla.—Profile: Upper part of corolla convex, lower part             of corolla concave. Petal arrangement: Persistent,             apopetalous, and overlapping. Margin: Crenate-dentate.             Indentations: 2 mm deep. Texture: Soft. Type: Double. Number             of petals: 15-20. Dimensions: 30 mm in length, 10 mm in             width. Petal shape: Obdeltoid. Petal surface: Glabrous.             Petal apex: Fan shaped, serrated. Petal base: Strap shaped,             tapering towards base. Color pattern: Blade is white with a             purple band. Color of adaxial surface: Ground color of             blade: Pure white, whiter than 155D. Color of band around             blade: Ranges from 46A to 61A. Color of middle of strap:             145C. Color of base of strap: 145D. Color of abaxial             surface: Ground color of blade: Pure white, whiter than             155D. Color of middle of strap: 145C. Color of base of             strap: 145D.         -   Calyx.—Dimensions: 20 mm in length and 8 mm in width. Shape:             Cylindrical. Sepals: Fused to 5 mm below the apex. Sepal             shape: Cylindrical, flat profile, parallel sides. Number of             sepals: 5. Sepal dimensions: 18 mm in length and 8 mm in             width. Apex: Divided to a depth of 5 mm, apex subacute.             Base: Fused, ovary superior. Color of sepals, outer surface:             137C fading to 137D at base. Color of sepals, inner surface:             137D. Anthocyanin: Absent. Splitting: Not observed.         -   Epicalyx.—Number: 1 pair of 2. Shape: Acuminate. Dimensions:             7 mm in length and 6 mm in width. Color: 143A. Anthocyanin:             Absent.         -   Bracteoles.—Number: 2. Dimensions: 4 mm in length and 5 mm             in width. Color: 143A. Anthocyanin: Absent. -   Reproductive organs:     -   -   Stamen number.—0-10.         -   Stamen dimensions.—15 mm in length and 0.5 mm in width.         -   Color of filaments.—White.         -   Anther number.—0-10.         -   Anther dimensions.—1 mm in length, 0.5 mm in diameter.         -   Color of anthers.—White.         -   Anther attachment.—Dorsifixed.         -   Pollen.—Absent.         -   Style number.—2.         -   Style shoulder.—Absent.         -   Color of style.—62D.         -   Style dimensions.—25 mm in length and 0.5 mm in width.         -   Stigma number.—One.         -   Stigma color.—White.         -   Stigma dimensions.—5 mm above petals at maturity.         -   Ovary position.—Superior.         -   Ovary dimensions.—5 mm in length and 4 mm in diameter.         -   Ovary shape.—Spindle.         -   Ovary color (upper and lower).—145B. -   Seed: ‘WP05 Yves’ does not set seed. 

1. A new and distinct cultivar of Dianthus plant named ‘WP05 Yves’ as described and illustrated herein. 